Pole body for an electric fuze, method of manufacturing and method of using the pole body

Abstract

The pole body contains an insulating carrier element made of plastic and provided with elevations on one side and on an other side of the insulating carrier element. The elevation on the other side partially protrudes into a metal layer applied to the insulating carrier element and conjointly therewith forms a planar surface forming the two poles of the fuze. The pole body is manufactured by applying the metal layer to the insulating carrier element which is provided with wedge-shaped elevations. Subsequently, the tips or ridges of the elevations are removed to such an extent that planes including the metal layer are formed. One of the elevations constitutes an interrupted elevation and a number of detonating bridges is formed, depending on the number of interruptions in the elevation between the ends of the elevation bounded by the interruptions thereof. The pole body is used in electric fuze devices which have a reaction time in the microsecond range and thus are suited for use with ammunition.

What I claim is: 
     
       1. A pole body for an electric fuze, comprising: an insulating carrier element;   a metal layer provided on said insulating carrier element and forming at least one detonating bridge;   said metal layer on said insulating carrier element defining a surface; and   said insulating carrier element partially protruding into said metal layer on said insulating carrier element and forming a common plane with said surface of said metal layer.   
     
     
       2. The pole body as defined in claim 1, wherein: said insulating carrier element defines one side and an other side;   a closed annular elevation formed on said one side of said insulating carrier element;   an interrupted elevation formed on said other side of said insulating carrier element; and   said further elevation being interrupted by said at least one detonating bridge.   
     
     
       3. The pole body as defined in claim 2, wherein: said interrupted elevation constitutes a substantially spiral-shaped elevation having two ends; and   said detonating bridge being provided between said two ends of said substantially spiral-shaped elevation.   
     
     
       4. The pole body as defined in claim 1, wherein: said insulating carrier element defines a rim portion; and   said insulating carrier element being provided at said rim portion with a step.   
     
     
       5. The pole body as defined in claim 1, wherein: said insulating carrier element is provided with a central bore and defines a rim portion; and   said insulating carrier element being further provided adjacent said rim portion with at least two further bores.   
     
     
       6. The pole body as defined in claim 1, wherein: said insulating carrier element is made of a homogeneous plastic member.   
     
     
       7. The pole body as defined in claim 1, wherein: said insulating carrier element constitutes a substantially completely combustible element.   
     
     
       8. The pole body as defined in claim 1, wherein: said pole body is used in an electric fuze for detonating ammunition.   
     
     
       9. A method of manufacturing a pole body containing an insulating carrier element, said method comprising the steps of: providing an insulating carrier element which possesses a central bore, at least two further bores adjacent a rim portion of said insulating carrier element, a closed annular elevation possessing a substantially wedge-shaped profile on one side and an interrupted elevation on an other side of said insulating carrier element;   applying at least one metal layer to said insulating carrier element and through said central bore and said further bores thereof; and   removing ridges of said closed elevation and of said interrupted elevation down to respective planes defined by said metal layer.   
     
     
       10. The method as defined in claim 9, wherein: said step of applying said at least one metal layer entails mechanically applying said at least one metal layer to said insulating carrier element.   
     
     
       11. The method as defined in claim 9, wherein: said step of applying said at least one metal layer entails chemically applying said at least one metal layer to said insulating carrier element.   
     
     
       12. The method as defined in claim 9, wherein: said step of applying said at least one metal layer entails mechanically and chemically applying said at least one metal layer to said insulating carrier element.   
     
     
       13. The method as defined in claim 9, wherein: said step of applying said at least one metal layer entails vapor-depositing said at least one metal layer to said insulating carrier element.   
     
     
       14. The method as defined in claim 9, wherein: said step of applying said at least one metal layer entails mechanically applying and vapor-depositing said at least one metal layer to said insulating element.   
     
     
       15. The method as defined in claim 9, wherein: said step of applying said at least one metal layer entails chemically applying the vapor-depositing said at least one metal layer to said insulating carrier element.   
     
     
       16. The method as defined in claim 9, wherein: said step of applying said at least one metal layer entails mechanically and chemically applying and vapor-depositing said at least one metal layer.   
     
     
       17. The method as defined in claim 9, wherein: said step of removing said ridges of said closed elevation and of said interrupted elevation entails simultaneously removing said ridges of said closed elevation on said one side and said ridges of said interrupted elevation on said other side of said insulating carrier element down to said respective planes defined by said metal layer.   
     
     
       18. The method as defined in claim 17, wherein: said step of removing said ridges of said closed elevation and of said interrupted elevation entails removing said ridges of said closed elevation and of said interrupted elevation by means of a melting-off operation.   
     
     
       19. The method as defined in claim 17, wherein: said step of removing said ridges of said closed elevation and of said interrupted elevation entails removing said ridges of said closed elevation and of said interrupted elevation by means of a grinding-off operation.   
     
     
       20. The method as defined in claim 17, wherein: said step of removing said ridges of said closed elevation and of said interrupted elevation entails removing said ridges of said closed elevation and of said interrupted elevation by means of a melting-off and a grinding-off operation.   
     
     
       21. A method of using a pole body comprising an insulating carrier element with at least two bores, a closed elevation on one side and an interrupted elevation on an other side thereof, a metal layer applied to said insulating carrier element and through said at least two bores thereof, and at least one detonating bridge formed by at least one interruption of said interrupted elevation on said other side of said insulating carrier element, in an electric fuze for detonating ammunition. 
     
     
       22. The method as defined in claim 21, wherein: said step of using said pole body entails using said pole body in an electric fuze for detonating projectiles.   
     
     
       23. The method as defined in claim 21, wherein: said step of using said pole body entails using said pole body in an electric fuze for detonating rockets.   
     
     
       24. The method as defined in claim 21, wherein: said step of using said pole body entails using said pole body in an electric fuze for detonating explosive charges.   
     
     
       25. The method as defined in claim 21, wherein: said step of using said pole body entails using said pole body in an electric fuze for detonating hollow charges.   
     
     
       26. The pole body as defined in claim 1, wherein: said surface of said metal layer defines an outer surface of the pole body.